added custom info window,

set min size to mainwindow

QtMeshViewer/Header/MainWindow.h

@@ -6,6 +6,7 @@
 #include <QStringList>
 #include <QLabel>
 #include "ui_MainWindow.h"
+#include "..\Header\FileInfoWindow.h"
 
 struct Material;
 
@@ -23,6 +24,7 @@ private:
 	void setupWidgets();
 	QByteArray m_fileInfo;
 	QLabel* m_output;
+	FileInfoWindow* m_infoWindow;
 
 private:
 	void openFile();